Answer:
0.7553
Step-by-step explanation:
Given that in a busy coffee shop, which is a member of an international chain of coffee shops, 40% of customers order a pastry in addition to their drink.
Hence for 20 customers selected at random during one business day, x the no of customers who did not order a pastry with their drink is binomial since each customer is independent and there are only two outcomes.
X is binomial with n =20 and p = 1-0.4 = 0.60
q = 0.4
the probability that at least 11 of them did not order a pastry with their drink
=
Note that binomial prob
Answer:
x≤9
Step-by-step explanation:
because im cool
Answer:
a=9
Explanation:
The triangle is a 45-45-90 triangle, so the sides have a 1-1-root 2 ratio. So, if 9 root 2 is to root 2, then find a to 1. You can solve this by setting up the ratio and solving for a:
a/1=9root2/root2
a/1=9
a=9
Answer: 17/18
In words, this is seventeen eighteenths
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Work Shown:
4/9 + 9/18
8/18 + 9/18 ... see note below
(8+9)/18
17/18
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note: To go from 4/9 to 8/18, we multiply top and bottom by 2. So that's why 4/9 = 8/18.
The diagram below shows a visual representation of why 4/9 = 8/18.
In the top row, I've drawn out 9 rectangles of the same size. Then I've shaded 4 of the 9 rectangles to represent the fraction 4/9. In the bottom row, I've cut each of those 9 rectangles into two smaller equal pieces, so we have 9*2 = 18 rectangles now. Note how the shaded regions are the same size, so this shows 4 green regions doubles to 2*4 = 8 yellow regions; therefore 4/9 is the same as 8/18.
Answer:
The answer is D my friend 10n-t. Hope this Helps :)
Step-by-step explanation:
